The site is characterized by the presence of a very rare habitat on the island of Malta, the habitat 5330 (for a total of 10.96 ha) that, together with the habitat 5410 (for 4.75 ha), will be directly affected by the interventions, as the restoration of rubble walls foresees the planting of species typical of these habitats. In particular, the garrigue (dominated by Anthyllis hermanniae and Euphorbia melitensis) hosts very rare species, such as Barlia robertiana, and orchids belonging to the genera Ophrys spp., Orchis spp., Serapias spp. Among the plants that colonize the brackish and dune environments, in addition to an interesting population of Orobanche densiflora, it is reported the presence of Juncus acutus, Melilotus, messanensis, Euphorbia chamaesyce, Elytrigia juncea, Ruppia drepanensis, Euphorbia terracina and Juncus subulatus.
The site is characterized by an aquatic environment that does not have particularly valuable vegetation elements and the cspecies are hampered by the seasonal regime that sees both the river and the reservoirs dry during the hot period. Populations of Nasturtium officinale and Ceratophyllum demersum are able to vegetate in the months of maximum presence of water, together with a few pleustophytes (Lemna spp) and then, generally, when the warm season arrives, with the warming of the waters, intense algal blooms begin, which eliminates the submerged vegetation. In the surrounding agricultural area, few residual elements of ruderal vegetation survive in the agricultural matrix. Elements of Salix alba, Populus alba and Alnus glutinosa are reported along with the abundant presence of the archeofita Arundo donax. As in the Agro Pontino, the presence of Eucalyptus trees doesn’t represent an optimal aspect since they are an alien species.